90496521 has 20 divisors (see below), whose sum is σ = 136511232. Its totient is φ = 59739768.

The previous prime is 90496499. The next prime is 90496541. The reversal of 90496521 is 12569409.

90496521 is a `hidden beast` number, since 90 + 49 + 6 + 521 = 666.

It is not a de Polignac number, because 90496521 - 2¹⁷ = 90365449 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90496541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2920 + ... + 13766.

Almost surely, 2^90496521 is an apocalyptic number.

It is an amenable number.

90496521 is a deficient number, since it is larger than the sum of its proper divisors (46014711).

90496521 is a wasteful number, since it uses less digits than its factorization.

90496521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962 (or 10953 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90496521 is about 9512.9659412825. The cubic root of 90496521 is about 448.9630791578.

The spelling of 90496521 in words is "ninety million, four hundred ninety-six thousand, five hundred twenty-one".